Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3005 - Signals
- 7 more...
- ItemStruc002020 - Great Northern Engineering Drawing, Signal Maintainer's and Motor Car House at Monroe, Washington, 1956
- ItemStruc002021 - Great Northern Engineering Drawing, Signal Maintainer's and Motor Car House at Monroe, Washington, 1957
- ItemStruc002174 - Great Northern Engineering Drawing, Signal Maintainer's and Motor Car House at Eureka, Montana, 1949
- ItemStruc002998 - Great Northern Engineering Drawing, Signal Maintainers House at Scenic, Washington, 1970
- ItemStruc002999 - Great Northern Engineering Drawing, Signal Maintainers House at Scenic, Washington, 1970
- ItemStruc004318 - Great Northern Engineering Drawing, Signal Maintainer Foot s House, 16 Foot X 36 Foot Metal at Barnesville, Minnesota, 1957
- ItemStruc009339 - Great Northern Engineering Drawing, Signal Maintainer and Track Forces Building, Metal 20 Foot X 56 Foot at Harlem, Montana, 1967
- ItemStruc009340 - Great Northern Engineering Drawing, Signal Maintainer and Track Forces Building, Metal 20 Foot X 56 Foot at Harlem, Montana, 1964
- ItemStruc009341 - Great Northern Engineering Drawing, Signal Maintainer and Track Forces Building, Metal 20 Foot X 56 Foot at Harlem, Montana, 1964
- 7 more...